Write the date in one of the top corners of the note. This verifies the date you produced the note.
Start the note with the name of the tardy student. Then, write whether the student was just tardy or actually absent from school.
Write the hours or dates the student missed.
Give a brief explanation for the student's absence. In most cases, a vague explanation is acceptable (For example: "He was sick with the flu." "He had a doctor's appointment.")
Write your signature on the bottom of the note to verify it.